“This case represents a breach of trust by a long-term employee of the Mark Twain House & Museum, a venerable Hartford landmark and institution of learning,” said US Attorney David Fein.

Authorities say Gregor submitted false information via the Internet to the museum’s payroll-management vendor to get more pay than she was entitled to and used the museum’s check-writing system to write checks payable to herself while forging the signatures of her supervisors on those checks.

Gregor faces up to 23 years in prison, a fine of about $2 million and restitution when she is sentenced Oct. 24.